1.5 Compare and contrast transmission media and transceivers.
Objective 1.5 sits in Networking Concepts, which carries 23% of the Network+ exam. The questions below are original, written from the official objective title above, and each explanation cites the CompTIA page it rests on.
Objective title verbatim from the official objectives. CompTIA exam page ↗
A worked example
Shown solved, with the whole explanation open: this is what every question here carries.
A network engineer reviewing the Catalyst 9300 interface configuration guide notes that Multigigabit Ethernet ports deliver speeds above 1 Gbps without recabling the access layer. Which transmission media enables this capability?
Correct.
Concept
Multigigabit Ethernet (mGig/NBASE-T) is designed to push speeds above 1 Gbps over the twisted pair copper cabling already installed in most access layer runs, avoiding a recabling project.
Why C
Twisted pair copper cabling, such as Cat5e or Cat6, is the media Multigigabit Ethernet uses to reach 2.5/5/10 Gbps on existing runs.
Source
Now you: objective 1.5 questions
No account needed. The explanation opens when you answer.
Sample question 1 of 3
Two switches sit three metres apart in one rack and are joined by a 25 Gbps direct attach cable. Which link mode does that cable use?
Sample question 2 of 3
An engineer brings up a 25 Gbps optical link between two switches. One end runs forward error correction and the other has it turned off. What can result?
Sample question 3 of 3
A router interface has an RJ45 jack and an SFP cage sharing one port, with the combo mode left at its default. Which link does the interface run on?
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Read the sources
These are the official pages the questions above cite. Reading them is studying the objective from the primary source, which is what the explanations point you toward anyway.
More objectives in Networking Concepts
- 1.1 1.1 Explain concepts related to the Open Systems Interconnection (OSI) reference model.
- 1.2 1.2 Compare and contrast networking appliances, applications, and functions.
- 1.3 1.3 Summarize cloud concepts and connectivity options.
- 1.4 1.4 Explain common networking ports, protocols, services, and traffic types.
- 1.6 1.6 Compare and contrast network topologies, architectures, and types.
- 1.7 1.7 Given a scenario, use appropriate IPv4 network addressing.
- 1.8 1.8 Summarize evolving use cases for modern network environments.